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Patent Searching and Data


Title:
METHOD FOR IDENTIFYING AND SORTING TIRE MARK
Document Type and Number:
Japanese Patent JPH0684003
Kind Code:
A
Abstract:

PURPOSE: To automatically identify and sort a tire mark without using manual operation on a tire carrying line.

CONSTITUTION: The number of centroids on each identification (ID) mark (code) is measured, in ID mark having plural centroids is distributed into a sorting line (step (4)) and a measured tire W with an ID mark having only one centroid is measured at the peak value of the ID code (5). On X and Y axis lines passing a centroid O, whether an ID mark includes one or plural peaks is judged (6), an ID mark with plural peaks is distributed into a sorting line (7), the line peak width of said one peak is compared a reference (8) and an ID mark with a different line peak width is distributed into the sorting line (10). An ID mark group judged as ID marks having approximately equal line peak width are applied to an arithmetic unit in a control device 3 to measure respective degrees of circularity (11). Respective measured circularity values are respectively measured (12) with a previously set logical value for the degree of circularity and respectively circularity values are sorted (13) and distributed into respective lines (14).


Inventors:
NODA YUICHI
MIURA KAZUE
KIMURA TASUKE
Application Number:
JP23687792A
Publication Date:
March 25, 1994
Filing Date:
September 04, 1992
Export Citation:
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Assignee:
YOKOHAMA RUBBER CO LTD
International Classes:
B60C13/00; G06K7/10; G06T1/00; B29C33/44; B29L30/00; (IPC1-7): G06K7/10; B29C33/44; B60C13/00; G06F15/62
Attorney, Agent or Firm:
Shinichi Ogawa (2 outside)